[1] He served as chief economist for the Council of Economic Advisers in the Trump Administration from September 6, 2018 to August 2019.
[2][3][4] In January 2025, President-elect Donald Trump announced his intention to appoint Mulligan as Chief Counsel for Advocacy at the Small Business Administration.
[1][6] After completing his PhD, he became a Postdoctoral Fellow at the University of Chicago before starting a tenure-track in 1994.
[7] He has written articles for RealClearPolitics, Newsweek, The Washington Times, and National Review.
[10][11] Mulligan has argued that the Patient Protection and Affordable Care Act ("Obamacare") disincentivizes work.